Defervescence helps caregivers monitor and interpret fever in children — and aggregates anonymous data to detect climate-driven outbreaks before they escalate.
Free · No ads · Open source · Built at SGPGIMS Lucknow
The Problem
In Central India, dengue, malaria, and enteric fever outbreaks are intensifying — yet fever, the first signal, is never systematically tracked at community level.
What it does
Two layers of impact — individual care guidance and population-level outbreak intelligence.
Log temperatures, track trends over time, and receive intelligent guidance on when to seek care — in a simple, accessible interface.
Individual careVisual fever trajectory charts help caregivers communicate clearly with doctors. Export a clinical summary in one tap.
Individual careAnonymous, geo-tagged fever logs are aggregated to detect unusual clustering — identifying outbreak signals days before hospital surge data.
Population healthDesigned for frontline health workers with intermittent connectivity. Offline-capable with background sync when connected.
Population healthReal-time fever density maps for district health officers. Automated alerts enable anticipatory resource deployment before thresholds are breached.
Coming in pilotAll aggregated data is fully anonymised. No personal data leaves the device without explicit consent. Open-source codebase — publicly auditable.
TrustSee it in action
A walkthrough of Defervescence — from fever logging to trend analysis and clinical export.
Development Status
Built at SGPGIMS Lucknow. Validated with healthcare workers and caregivers across Madhya Pradesh.
Fever severity thresholds, warning sign rules, and care escalation logic validated against SGPGIMS clinical protocols.
CompleteFull-stack app built on React, Capacitor, and Supabase. Core features complete: logging, trends, PDF export, authentication.
CompleteStructured evaluation using SUS + MAUQ questionnaires with a mixed cohort of healthcare workers and caregivers. Results to be submitted to JMIR mHealth and uHealth.
In progressPublic launch on Android. Early access sign-ups open now.
UpcomingGeospatial aggregation layer and district dashboard deployed across 3 districts in Madhya Pradesh in partnership with NHM.
PlannedFull codebase published under open-source licence. Expansion to 2 additional states.
PlannedDefervescence commits to open-source licensing. The full codebase will be publicly available on GitHub — auditable by clinicians, developers, and public health researchers globally.
View on GitHub